Abstract: Background: The species Bidens pilosa, Euphorbia heterophylla, and Amaranthus hybridus have shown high interference in soybean cultivation, especially due to biotypes resistant to various herbicides. Objective: This study aimed to analyze the effectiveness of soil cover associated with pre-emergence herbicides in managing these species Methods: Separate experiments were conducted for each weed species in a completely randomized design with a 4 × 4 factorial scheme and three replications. The evaluated factors were chemical management (diclosulam, flumioxazin, sulfentrazone, and an […]

Abstract: Farmers have reported difficulty in controlling Ambrosia sp., observing uncontrolled plants in soybean fields even after post-emergence glyphosate application. The aim of this study was to evaluate the response of Ambrosia sp.to different rates of the herbicide glyphosate. The experiment was conducted in duplicate in a greenhouse at the Federal University of Santa Catarina, Curitibanos campus, between September and December 2022, using a completely randomized design with four replications. The treatments consisted of the application of nine increasing rates […]